Production method for aluminized steel plate plating material aluminum-silicon alloy

A technology of aluminum-magnesium alloy and silicon alloy materials, which is applied in the field of aluminum-silicon alloy materials for coating aluminum-plated steel sheets, can solve the problems of split metal structure, decline in material mechanical properties, and uneven pits and pits, so as to reduce surface tension, The effect of prolonged modification time and grain refinement

Inactive Publication Date: 2020-10-27
JIANGSU LINLONG NEW MATERIALS
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Problems solved by technology

[0004] However, if the aluminum-silicon alloy exists in a liquid state and has not been modified, there are α and β phases in the alloy liquid. When it cools, the liquid begins to shrink, pits appear on the surface, and the silicon phase is a coarse sheet structure. Therefore, it is also called primary crystal silicon, which splits the metal structure and reduces the mechanical properties of the material.

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  • Production method for aluminized steel plate plating material aluminum-silicon alloy

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Embodiment Construction

[0037] The hot-dip aluminum-silicon alloy material provided by the invention mainly contains Si: 6-13%; RE: 0.02-0.3%; Ti: 0.02-0.5%; B: 0.01-0.25%, and the balance is Al and unavoidable impurities (such as Fe) content. In order to describe the technical solution of the present invention to those skilled in the art, the numerical values ​​listed in Table 1 below are the specific numerical values ​​of some preferred embodiments that have been selected and achieved better technical effects within the protection scope of the present invention. However, the content of each component of the present invention is not limited to the numerical values ​​listed in Table 1. For those skilled in the art, they can be reasonably summarized and deduced on the basis of the numerical range listed in Table 1.

[0038] Table 1: The mass percentage (%) of each component in the total weight

[0039] Si RE Ti B Al Impurities (Fe, etc.) 11.0 0.1 0.15 0.038 margin ≤0.03 ...

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Abstract

The invention relates to a novel hot dip aluminum-silicon alloy material and a production method thereof. The material mainly contains 6 to 13 percent of Si, 0.02 to 0.3 percent of RE, 0.02 to 0.5 percent of Ti, 0.01 to 0.25 percent of B and the balance of Al and inevitable impurities. The invention further discloses the production method for preparing the material.

Description

technical field [0001] The invention relates to an aluminum-silicon alloy material for coating an aluminum-coated steel sheet, in particular to a production method for an aluminum-silicon alloy coating material for a hot-dip aluminum-coated steel sheet. Background technique [0002] In addition to galvanizing, most of the hot-dip steel sheets, steel strips, and wires use zinc-aluminum-silicon alloys, and there are also a small amount of tin-plated materials. Recently, because the corrosion resistance of pure aluminum is higher than that of pure zinc, but the mechanical properties of pure aluminum are low, other elements must be added, such as copper, iron and other elements to improve the mechanical strength of aluminum alloy materials, but some elements make aluminum alloy materials hard and flaky. Brittle, high melting point, if used as a hot-dip alloy material, there are great difficulties in the hot-dip production process. [0003] In order to solve the above problems, ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/04C22C1/03C22C1/06C23C2/12C23C2/40
CPCC22C1/026C22C1/03C22C1/06C22C21/04C23C2/12C23C2/40
Inventor 冯立新严锦山魏小昕
Owner JIANGSU LINLONG NEW MATERIALS
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